what is static friction
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Static friction is a force that keeps an object at rest. It must be overcome to start moving the object. Once an object is in motion, it experiences kinetic friction. If a small amount of force is applied to an object, the static friction has an equal magnitude in the opposite direction.
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Friction :
The force that opposes the motion of an object
Types of friction :
Static friction - a force that keeps an object at rest
Kinetic friction - a force that acts between moving surfaces
Rolling friction - when one body rolls over another , the resistance offered to motion
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